Daily entries
What gave me energy today
What gave me energy today
What gave me energy today
What gave me energy today
What gave me energy today
Friday morning measurements — before coffee, before getting up
What gave me energy today
What gave me energy today
Daily entries
What gave me energy today
What gave me energy today
What gave me energy today
What gave me energy today
What gave me energy today
Friday morning measurements — before coffee, before getting up
What gave me energy today
What gave me energy today
How to take your Friday measurements
Breathing efficiency
BOLT Score
Measures CO₂ tolerance — a direct indicator of breathing efficiency and nervous system regulation. Low tolerance often means a chronic low-grade stress state even at rest.
1
Take a normal breath in through your nose
2
Exhale normally — not forced — through your nose
3
Pinch your nose and start a timer
4
Stop at the first clear urge to breathe — not the maximum you can hold
Good efficiency40+ sec
Room to improve20–40 sec
Overbreathing likelyBelow 20 sec
Trends over weeks matter more than any single score.
Cardiovascular readiness
Resting Heart Rate
A rising RHR over consecutive days often precedes felt fatigue by 24–48 hours — your body signals stress before you consciously register it.
1
Before getting up — still lying down
2
Count beats for 60 seconds (or use a smartwatch)
3
Record before coffee, conversation, or checking your phone
Well recovered50–65 bpm
Normal range66–80 bpm
Worth noticing80+ bpm
Your personal baseline matters most. A rise of 5+ bpm above your norm is the signal to pay attention to.